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  5. 4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
4-1/2" X 7/8" T27 Curved Ceramic Flap Discs For Fillet Welds - 1 Piece
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US
The T27 curved flap disk worked great! A fraction of the big box price. It doesn’t curve all the way around but enough to do the job perfectly.
2025-11-03
US
I've been using BA flap discs and solid grinding wheels for several years and have yet to be disappointed. A week or so ago I chose to try the new "curved" edge ceramic discs for a upcoming project. I must say the swiftness at which I was able to achieve the desired finish was more than I expected. The inside corners were perfect and finished in far less time! I'm more than satisfied with their performance!
2024-02-28
US
Works good for inside rounded corners. Not sure about longevity.
2024-02-13
US
Best discs I've ever used. Benchmark is my go-to source!
2024-01-17
US
Ordered a couple of these on a whim. They work amazingly well. Will definitely be ordering more!
2023-11-24
US
Awesome!
2024-02-06
About this product
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Product Specification
4-1/2" X 7/8" T27 CURVED CERAMIC FLAP DISCS FOR FILLET WELDS - 1 PIECE
4-1/2" x 7/8" T27 Curved Ceramic Flap Discs are manufactured using European ceramic cloth. The European material is superior due to its uniform particle size and premium blend of ingredients. These flap discs are manufactured using the latest development in abrasive technology in the metalworking industry. Ceramic Flap Discs do exceptionally well, outperforming Zirconia flap discs by up to 50% on stainless steel, carbon steel alloys, and exotic metals.
Our new curved flap discs were created specifically for finishing fillet welds and other hard-to-reach places. You can hit weld seams and slag with both the side and bottom of the flap discs. The Ceramic grains can be used for heavy material removal on all types of metals.
Ceramic grains are self-sharpening, remaining sharp throughout the entire life of the wheel. In addition, all discs are manufactured on computer-controlled machines and subject to numerous tests which ensure high quality and greater safety. These ceramic flap discs are intended for surface prep grinding, along with grinding and blending welds. This flap disc is particularly effective for stainless steel, carbon steel alloys, and other metals. It is designed with ceramic grains resin bonded to high strength polyester flaps adhered to a fiberglass backing plate.
Quantity: 1 piece
Dimensions
·Outer Diameter – 4-1/2” 
·Inner Diameter – 7/8”
·Shape – T27 Flat Face + curved edges for fillet welds
·Thickness – Regular Density 
·Grain – Ceramic 
·Available Grits – 36, 40, 60, 80, 120
·Backing – X-weight polycotton cloth
·Max RPM – 13,300 
Machines Used On:
·Angle Grinders sized 4-1/2” to 5“.
Application:
·Ferrous Materials – Cast Iron, Steel, Stainless, Steel, Titanium, Nickel, Wrought Iron, Super Alloys
·Non-Ferrous Materials – Copper, Brass, Tin
·Fillet weld grinding
·Dry use ONLY
Safety Tips & Techniques:
·For less stock removal try using a lighter touch or a feathered approach to your grinding.  Flap discs are like grinding wheels with power steering!
·Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection.  Keep all guards in place on your machine.
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